Scala - Math sqrt() Method

The Scala Math sqrt() method returns the square root of the given number. In special cases it returns the following:

If the argument is NaN or less than zero, then the result is NaN.
If the argument is positive infinity, then the result is positive infinity.
If the argument is positive zero, then the result is the same as the argument.

Syntax

def sqrt(x: Double): Double = java.lang.Math.sqrt(x)

Parameters

`x`	Specify a number.

Return Value

Returns the square root of the specified number.

Exception

NA.

Example:

In the example below, sqrt() method is used to find out the square root of the given number.

import scala.math._

object MainObject {
  def main(args: Array[String]) {
    println(s"sqrt(10) = ${sqrt(10)}");  
    println(s"sqrt(100) = ${sqrt(100)}"); 
    println(s"sqrt(50) = ${sqrt(50)}"); 
    println(s"sqrt(0) = ${sqrt(0)}");
    println(s"sqrt(-50) = ${sqrt(-50)}");
    println(s"sqrt(Double.NaN) = ${sqrt(Double.NaN)}"); 
    println("sqrt(Double.PositiveInfinity) = "
            + sqrt(Double.PositiveInfinity));
    println("sqrt(Double.NegativeInfinity) = "
            + sqrt(Double.NegativeInfinity));            
  }
}

The output of the above code will be:

sqrt(10) = 3.1622776601683795
sqrt(100) = 10.0
sqrt(50) = 7.0710678118654755
sqrt(0) = 0.0
sqrt(-50) = NaN
sqrt(Double.NaN) = NaN
sqrt(Double.PositiveInfinity) = Infinity
sqrt(Double.NegativeInfinity) = NaN

❮ Scala - Math Methods